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Annex
46
Controlling a compressor with line pressure switch (example)
Translations
Danger
When a compressor module (STD) is installed, the compressor's pressure switch can no longer provide over-
pressure protection.
For compressors that are not equipped with independent over-pressure detection it is recommended that a
pressure switch be incorporated in the compressor fault circuit(s) such that any local over-pressure condition
will stop the compressor independently from the GD Connect 12.
Compressor module (STD)
Remote
load
enable
Remote
load
P
Pressure switch
(High press. prot.)
P
Compressor
Press. switch
+V
21 22 23
26 27 28
Regul. valve
Regul. valve
Compressor module (STD)
Remote
load
enable
Remote
load
P
Compressor
Press. switch
Regul. valve
+V
21 22 23
26 27 28
P
Pressure switch
(High press. prot.)